Booth turned around as the man asked him to stop. He flattened his lips into a line and scowled. "Look, I don't know who you think you're fooling, but if this is supposed to be some kind of joke, it really isn't funny. Now what the fuck have you done with my partner?" His tone suggested that he was completely serious and that he'd be getting physical if he didn't get answers soon.
He shook his head when Brennan tried to explain that she was who she said she was. "Yeah, my partner is a female, jackass. You are clearly male. Now if you don't tell me what you did with Bones, I'm going to beat it out of you." He was advancing on the man slowly, giving him a chance to fess up.